GWJP Pole‑Mounted LV Integrated Distribution Box / Cabinet

Product Introduction

• GWJP Pole‑Mounted LV Integrated Distribution Box (Cabinet) serves as the core complete‑set equipment on the low‑voltage side of distribution transformers, receiving LV output from its associated distribution transformer and supplying power via multiple feeder circuits. The cabinet enclosure is made of stainless steel or powder‑coated cold‑rolled steel plate with internally‑divided independent compartments. The metering compartment allows sealing by lead‑seal. The complete cabinet is standard‑equipped with rain‑proof top cover and ventilation & heat‑dissipation structure, delivering excellent rain‑proof, dust‑proof and anti‑condensation performance to adapt to harsh outdoor conditions.
• Two versions are available: standard type and intelligent type. The standard type fulfills basic power distribution, protection and reactive power compensation; the intelligent type is fitted with a distribution transformer monitoring terminal to realize data acquisition, remote communication and power quality monitoring. The whole set complies with relevant standards for low‑voltage switchgear and control‑gear assemblies. With reliable components and reasonable layout for incoming and outgoing cables, it facilitates on‑site commissioning and subsequent maintenance, suitable for domestic and overseas outdoor LV power distribution projects.

Product Composition

• Cabinet Enclosure: Stainless steel / powder‑coated cold‑rolled steel cabinet, independent compartments, door lock, rain‑proof & heat‑dissipation structure, cable entry and exit holes
• Incoming Unit: Main disconnector (or fuse‑switch disconnector), current transformers, main busbar; for main circuit switching‑on/off and signal acquisition
• Feeder Outgoing Unit: Multi‑circuit outgoing circuit breakers and residual‑current protective devices, providing protection for multiple load branch outputs
• Metering Unit: Energy meters and transformers, independent lead‑sealable metering compartment for energy metering and data collection of distribution areas
• Reactive Power Compensation Unit: Compensation capacitors, switching devices and compensation controller for automatic reactive‑power compensation switching
• Intelligent Monitoring Unit (Optional for Intelligent Version): Distribution transformer monitoring terminal, communication module for remote upload of voltage, current and event data
• Auxiliary Accessories: Earthing components, thermostatically‑controlled cooling fans, surge protection devices, secondary wiring terminals and other accessories

Product Functions

• Power Distribution: Distributes low‑voltage power from transformers and supplies power through multiple feeders to meet multi‑circuit power supply requirements
• Energy Metering: Realizes total energy metering for distribution areas, supports local and remote meter reading. Lead‑sealable metering compartment ensures metering security
• Circuit Protection: Provides short‑circuit protection, overload protection, residual‑current protection, over‑voltage and under‑voltage protection. Cuts off faulty circuits to protect equipment and personal safety
• Reactive Power Compensation: Automatically switches capacitor banks for dynamic reactive‑power compensation, raises power factor, reduces line losses and optimizes voltage quality of distribution areas
• Power Quality Monitoring (Intelligent Version): Collects real‑time operating data including voltage, current, power and temperature; supports remote data upload, fault alarm and event logging
• Lightning & Surge Protection: Built‑in low‑voltage surge protection devices together with a complete earthing system to withstand lightning surges in outdoor environments
• Safety Protection: Multi‑compartment isolation design prevents mis‑operation. High outdoor protection grade enables stable operation under intense sunlight, heavy rain and large diurnal temperature variation

Technical Parameters

• Rated Operating Voltage: AC 400V/230V, three‑phase four‑wire system
• Rated Frequency: 50 Hz
• Rated Operating Current: 100‑800 A (Typically compatible with 100 kVA‑630 kVA distribution transformers, customizable according to actual capacity)
• Compensation Mode: Three‑phase common compensation, split‑phase compensation optional
• Compensation Capacity: 30‑240 kvar, configurable on demand
• Degree of Protection: IP54 (Equipped with rain‑proof top cover and ventilation & heat‑dissipation structure)
• Ambient Operating Temperature: ‑45 °C ~ +65 °C
• Altitude: ≤ 3000 m
• Relative Humidity: Daily average ≤ 90%, no condensation
• Installation Method: Pole‑mounted suspension / floor‑standing installation
• Applicable Standards: GB7251.1, GB/T15576 (Low‑voltage reactive power compensation assemblies)
• Communication Interface (Intelligent Version): RS485, 4G optional; supports DL/T 645 and Modbus‑RTU protocols

Application Scenarios

• Supporting deployment for pole‑mounted transformers in urban‑rural power‑grid renovation projects
• Public distribution areas for rural villages and township residential communities
• Low‑voltage distribution areas for township industrial parks, mining sites, farms and photovoltaic supporting systems
• Outdoor public transformer distribution points in suburban areas and urban‑village‑in‑city zones
• Overseas 0.4 kV low‑voltage distribution projects, rural distribution networks and small‑scale industrial & commercial distribution areas
• New‑build or retrofitted distribution transformers requiring integrated power distribution, metering, compensation and protection for outdoor power supply